Background

Mr. John P. Keller served as the President of The Keller Group, Inc. since 1972. He serves as the Chairman and Treasurer of The Keller Group, Inc. Mr. Keller serves as the Chairman of the Board of Buckeye Industrial Mining Company. From 1993 to 1994, Mr. Keller served as Chairman of American Appraisal Associates, an appraisal company. Mr. Keller serves as a Director of Fifth Third Bank of Illinois, American Association of Entrepreneurs and MacLean-Fogg Co. He serves ... as a Trustee of Museum of Science and Industry. Mr. Keller has been a Director of Castle Energy Corp. since April 1997. Mr. Keller served as a Director of AM Castle & Co. (formerly, Castle A M & Co.) since 1980. He served as a Director of Delta Petroleum Corp. from June 2002 to March 2005. He served as a Director of Old Kent Financial Corporation since 1988. He received his bachelor’s degree from Yale University and his M.B.A. from the Harvard School of Business.

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